5 search results - page 1 / 1 » Early Separation of Filter and Refinement Steps in Spatial Q... |
DASFAA
1999
IEEE
13 years 8 months ago
1999
IEEE
The spatial query has been processed in two steps, the filter step and the refinement step, due to a large volume and high complexity of the spatial data. However, this approach h...
GIS
2006
ACM
14 years 5 months ago
2006
ACM
This paper presents a query optimizer module based on cost estimation that chooses the best filtering step algorithm to perform a specific spatial join operation. A set of express...
ICDE
2000
IEEE
14 years 5 months ago
2000
IEEE
Optimizing queries that involve operations on spatial data requires estimating the selectivity and cost of these operations. In this paper, we focus on estimating the cost of spat...
ICDE
2007
IEEE
14 years 5 months ago
2007
IEEE
Traditional approaches for efficiently processing historical queries, where a history is a multidimensional timeseries, employ a two step filter-and-refine scheme. In the filter s...
ADC
2006
Springer
13 years 10 months ago
2006
Springer
Many strategies for similarity search in image databases assume a metric and quadratic form-based similarity model where an optimal lower bounding distance function exists for fil...